text: Antoine de Saint-Yon passed his medical thesis in 1671 with the title: 
  In 1677, he practised as a  at the Faculty of Medicine in Paris and was  dean from 1704 to 1706. He was  of the King Louis XVI.
  He was a substitute professor for Guy-Crescent Fagon at the chair of chemistry in the Jardin du Roi in 1695, 1707 and 1715. Among his students were Sébastien Vaillant and Gilles-François Boulduc.
  Antoine de Saint-Yon died without having left any writing on medicine or chemistry.